Saw the asthma nurse yesterday and she has changed my prescription so that I get 4 inhalers a month, This means that I can change weekly instead of trying to guess when it is running out. She has also reassured me about the high dosage. I need this at present because of my complex condition. I cant use the accuhalers as I need to use a spacer. Thanks again to all of you who offered advice. It really helps to know that others out there have the same difficulties. Keep positive and have a good day.